Population Information System update to be reflected in the population number of Finland the day after tomorrow
18.11.2025 07:03:00 EET | Digi- ja väestötietovirasto | Press release
The Population Information System will undergo an update on 19 November 2025 that will affect the data on Finland’s population number. The population number is displayed on the website of the Digital and Population Data Services Agency and a light-up billboard on the roof of the Helsinki service location starting 20 November 2025. The annual update involves removing the municipality of residence of people whose place of residence has been unknown for two years. The change applies to about 2,250 persons who will also be removed from the population number of Finland as a result.

In the Population Information System, people with unknown residence refers to those who still have a municipality of residence in Finland but whose place of residence has been unknown to the authorities since 1 January 2023. In practice, these are people who have moved away from Finland but have not thought to submit an emigration notification.
In Finland, the Municipality of Residence Act requires that every person notifies their up-to-date address information to the Digital and Population Data Services Agency whenever they change their place of residence. The Digital and Population Data Services Agency records the data in the Population Information System. The address must correspond to the person’s actual place of residence.
Light-up billboard shows the number of people with a municipality of residence in Finland
The Digital and Population Data Services Agency’s website at dvv.fi and the light-up billboard on the roof of the Helsinki service location show how many living persons have a municipality of residence in Finland. The figure is based on the register data from the previous day, and it updates every morning at about 5 a.m.
However, the number shown on the light-up billboard is not the same as the official population of Finland. The official population number is produced by Statistics Finland based on register data from the Digital and Population Data Services Agency and other data sources and analysis. Statistics Finland is also responsible for the population forecast.
- People are interested in the number on the billboard and at dvv.fi. Round numbers are of especial interest. Many people contacted the agency when the number hit 5,555,555, for example. This update to the municipality of residence data concerns 2,250 people, and it will be reflected as a more significant decrease of the number compared to normal daily variation, says Chief Specialist Tytti Ronkainen from the Digital and Population Data Services Agency.
A similar update to the Population Information System was last made on 12 November 2024. The procedure is based on section 9a, subsection 2 of the Municipality of Residence Act (201/1994).
PLEASE NOTE when dealing with the authorities! If you are informed that your municipality of residence has been removed even though you still live in Finland, you can correct this by a change of address notification at muuttoilmoitus.fi or by visiting your nearest Digital and Population Data Services Agency service point.
Up-to-date information in the Population Information System facilitates everyday life and decision-making
The Finnish Population Information System is rare on a global scale. It contains information on all Finnish citizens and foreign citizens residing in Finland. The system is used to collect information on births, deaths, addresses, marriages and divorces as well as received citizenships.
Thanks to the Population Information System, much of what happens in our society seems automatic to the citizens. For example, families of children entering compulsory school age receive a notification of the start of compulsory education and a proposal for a school place. The system also creates a register of those entitled to vote, so people do not have to register to vote.
Keywords
Contacts
Tytti RonkainenChief Specialist
Tel:+358295535294tytti.ronkainen@dvv.fiImages

Digital and Population Data Services Agency (The Finnish Digital Agency)
Digital and Population Data Services Agency (The Finnish Digital Agency) promotes the digitalisation of society, secures the availability of information and provides services related to customers’ life events.
The Digital and Population Data Services Agency (The Finnish Digital Agency) sees to the maintenance of the Population Information System, which is the foundation for our society, and to the digitalisation of society. The agency’s tasks include civil marriages, name and address changes, guardianship and administrative guardianship, maintenance of the Population Information System, development of solutions for electronic identification, as well as the development and maintenance of centralised support services for e-services. E-service support services include the Suomi.fi Web Service, electronic messages from authorities (Suomi.fi Messages) as well as authorisation for acting on behalf of another party (Suomi.fi e-Authorization).
Alternative languages
Subscribe to releases from Digi- ja väestötietovirasto
Subscribe to all the latest releases from Digi- ja väestötietovirasto by registering your e-mail address below. You can unsubscribe at any time.
Latest releases from Digi- ja väestötietovirasto
Nyt valppaana verkossa! – maksuton yleisötilaisuus Jyväskylässä 15.4.2026 digihuijauksista ja netin turvallisesta käytöstä9.4.2026 06:10:00 EEST | Kutsu
Digi- ja väestötietovirasto (DVV) järjestää yhdessä Jyväskylän Paviljongin, Sisä-Suomen poliisilaitoksen, Liikenne- ja viestintävirasto Traficomin Kyberturvallisuuskeskuksen ja Aalto-yliopiston kanssa Nyt valppaana verkossa – miten toimit netissä turvallisesti? -yleisötilaisuuden keskiviikkona 15.4.2026 Jyväskylän Paviljongissa.
Generaldirektör Janne Viskari: ”Papperstidens lagstiftning styr det digitala Finland”23.3.2026 13:17:27 EET | Pressmeddelande
Hur drar Finland nytta av att digitaliseringen fördjupas? Digihumaus-rapporten, som Myndigheten för digitalisering och befolkningsdata publicerade idag, behandlar betydelsen av förändringstrenderna och de möjligheter de medför för det digitala Finland.
Pääjohtaja Janne Viskari: ”Digitaalista Suomea ohjailee paperiajan lainsäädäntö”23.3.2026 09:15:52 EET | Tiedote
Miten Suomi saa hyödyt irti digitalisaation syvenemisestä? Digi- ja väestötietoviraston tänään julkaisema Digihumaus-raportti käsittelee muutostrendien merkitystä ja niiden mukanaan tuomia mahdollisuuksia digitaaliselle Suomelle.
På väg mot ålderspension? Den nya guiden på Suomi.fi hjälper dig att göra smarta val17.3.2026 13:21:18 EET | Pressmeddelande
Många i åldern 55–70 år funderar på ekonomin, fortsatt arbete, boende och välmående under den kommande pensionen. Samtidigt söker man information från flera källor, men helhetsbilden kan förbli oklar. Nu publiceras guiden Att gå i ålderspension på Suomi.fi och samlar för första gången alla centrala uppgifter och anvisningar på ett ställe.
Vanhuuseläkkeelle? Suomi.fin uusi opas auttaa tekemään fiksuja valintoja17.3.2026 13:20:34 EET | Tiedote
Moni 55–70-vuotias pohtii tulevien eläkepäivien taloutta, työn jatkamista, asumista ja hyvinvointia. Samalla tietoa etsitään useista lähteistä, ja kokonaiskuva voi jäädä epäselväksi. Nyt julkaistu Suomi.fi:n Vanhuuseläkkeelle siirtyminen -opas kokoaa ensimmäistä kertaa kaikki keskeiset tiedot ja ohjeet yhteen paikkaan.
In our pressroom you can read all our latest releases, find our press contacts, images, documents and other relevant information about us.
Visit our pressroom